Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Shares balance beginning of period (in shares) at Dec. 28, 2019		220,000,000
Balance at beginning of period at Dec. 28, 2019	$ 3,709	$ 2	$ 2,845	$ 916	$ (54)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	7		7
Proceeds from employee stock purchase plan	6		6
Exercise of stock options (in shares)		0
Exercise of stock options	1		1
Tax withholding payments for net share-settled equity awards	(2)		(2)
Adoption of ASU 2016-13	(1)			(1)
Unrecognized gain (loss) on interest rate swaps, net of income tax	(6)				(6)
Net income (loss)	(132)			(132)
Shares balance end of period (in shares) at Mar. 28, 2020		220,000,000
Balance at end of period at Mar. 28, 2020	3,582	$ 2	2,857	783	(60)
Shares balance beginning of period (in shares) at Dec. 28, 2019		220,000,000
Balance at beginning of period at Dec. 28, 2019	3,709	$ 2	2,845	916	(54)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Paid-in-kind Series A convertible preferred stock dividends	5
Changes in retirement benefit obligations, net of income tax	1
Net income (loss)	(224)
Shares balance end of period (in shares) at Jun. 27, 2020		221,000,000
Balance at end of period at Jun. 27, 2020	3,500	$ 2	2,871	686	(59)
Shares balance beginning of period (in shares) at Mar. 28, 2020		220,000,000
Balance at beginning of period at Mar. 28, 2020	3,582	$ 2	2,857	783	(60)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	12		12
Stock Issued During Period, Shares, Employee Stock Purchase Plans		1,000,000
Proceeds from employee stock purchase plan	5		5
Tax withholding payments for net share-settled equity awards	(3)		(3)
Paid-in-kind Series A convertible preferred stock dividends				5
Series A convertible preferred stock dividends	(5)
Changes in retirement benefit obligations, net of income tax	1				1
Net income (loss)	(92)			(92)
Shares balance end of period (in shares) at Jun. 27, 2020		221,000,000
Balance at end of period at Jun. 27, 2020	3,500	$ 2	2,871	686	(59)
Shares balance beginning of period (in shares) at Jan. 02, 2021		221,000,000
Balance at beginning of period at Jan. 02, 2021	3,530	$ 2	2,901	661	(34)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	10		10
Proceeds from employee stock purchase plan	5		5
Stock Issued During Period, Value, Restricted Stock Award, Gross		$ 1
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	0
Exercise of stock options (in shares)		0
Exercise of stock options	4		4
Tax withholding payments for net share-settled equity awards	(12)		(12)
Paid-in-kind Series A convertible preferred stock dividends				15
Series A convertible preferred stock dividends	(15)
Unrecognized gain (loss) on interest rate swaps, net of income tax	2				2
Net income (loss)	(24)			(24)
Shares balance end of period (in shares) at Apr. 03, 2021		222,000,000
Balance at end of period at Apr. 03, 2021	3,500	$ 2	2,908	622	(32)
Shares balance beginning of period (in shares) at Jan. 02, 2021		221,000,000
Balance at beginning of period at Jan. 02, 2021	3,530	$ 2	2,901	661	(34)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Paid-in-kind Series A convertible preferred stock dividends	15
Changes in retirement benefit obligations, net of income tax	0
Net income (loss)	31
Shares balance end of period (in shares) at Jul. 03, 2021		222,000,000
Balance at end of period at Jul. 03, 2021	3,573	$ 2	2,933	668	(30)
Shares balance beginning of period (in shares) at Apr. 03, 2021		222,000,000
Balance at beginning of period at Apr. 03, 2021	3,500	$ 2	2,908	622	(32)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	13		13
Proceeds from employee stock purchase plan	5		5
Exercise of stock options	8		8
Tax withholding payments for net share-settled equity awards	(1)		(1)
Series A convertible preferred stock dividends	(9)			(9)
Changes in retirement benefit obligations, net of income tax	0
Unrecognized gain (loss) on interest rate swaps, net of income tax	2				2
Net income (loss)	55			55
Shares balance end of period (in shares) at Jul. 03, 2021		222,000,000
Balance at end of period at Jul. 03, 2021	$ 3,573	$ 2	$ 2,933	$ 668	$ (30)